Michelle Williams and Sarah Silverman, along with co-star Seth Rogan, have been filming in various locations around the Canadian city Toronto for over a month. Michelle Williams and Sarah Silverman go swimming while filming scenes for their movie Take This Waltz. Michelle, 29, was wearing a red polka dot swimsuit for the scenes, while comedian Sarah Silverman, who plays her sister-in-law, wore a white one-piece with an orange pattern.They wrapped themselves in towels in between filming while they listened to instructions from director Sarah Polley, who also wrote the screenplay